Percentage change from 90 to 15

Instant answer with step-by-step formula

Percentage change from 90 to 15 = 83.333333% decrease
((15 − 90) ÷ 90) × 100 = -83.333333% (decrease)

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Step-by-step explanation

  1. Write the formula: ((New − Old) ÷ Old) × 100
  2. Subtract: 15 − 90 = -75
  3. Divide by old value: -75 ÷ 90 = -0.833333
  4. Multiply by 100: -83.333333% (decrease)

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